Finding the Fourth Proportional to 8,900.54, 12,282.90 and 4,921.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.54 : 12,282.90 = 4,921.82 : x
2. Step 2: Convert to fraction form
   8,900.54/12,282.90 = 4,921.82/x
3. Step 3: Cross multiply
   8,900.54x = 12,282.90 × 4,921.82
4. Step 4: Simplify right side
   8,900.54x = 60,454,222.88
5. Step 5: Solve for x
   x = 60,454,222.88/8,900.54
6. Step 6: Final answer
   x = 6,792.20